★ Must-know
Further detail
★ Must-know
📌 Heterotrophic organisms obtain glucose through their food, whereas autotrophic plants produce glucose themselves.
Further detail
Carbon dioxide and water are energy-poor substances that plants convert into the energy-rich substance glucose.
Some plants convert glucose into sucrose and starch, which can be converted back into glucose when energy is lacking and therefore serve as energy reserves.
1. A cell breaks down glucose during cellular respiration. Which energy transformation occurs in this process?
2. A student describes cellular respiration in a cell as glucose being converted into waste products while its stored energy changes form. Which classification best describes the process?
3. An organism obtains glucose by eating other organisms, while a nearby plant makes its own glucose. How should the organism and the plant be classified, respectively?
What is cellular respiration?
The process in which glucose is burned in mitochondria and converted into carbon dioxide, water, and other waste products.
Into what forms is glucose’s chemical energy converted during cellular respiration?
Kinetic and thermal energy.
How do heterotrophic organisms obtain glucose?
Through their food.
How do autotrophic plants obtain glucose?
They produce it themselves.
Which gases and substances do plants use to produce glucose, and where do they obtain them?
Carbon dioxide comes from the air through leaves, and water comes from the soil through roots.
What gas do plants also produce while making glucose?
Oxygen gas.
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